* {
    margin            : 0;
    padding           : 0;
    box-sizing        : border-box;
    /* background-size: 100% 100% !important;
    手机端用的；2021-3-26 15:01:12
    */
}

body {
    width      : 100%;
    height     : auto;
    max-width  : 1920px !important;
    min-width  : 1200px !important;
    margin     : 0 auto;
    font-family: "微软雅黑";
}

.mg {
    margin: 0 auto;
}

button {
    border : 0;
    padding: 0;
    cursor : pointer;
}

li {
    list-style: none;
}

/* 4.实训基地 */

.training_base {
    width        : 1200px;
    height       : 746px;
    margin-bottom: 38px;
}

.tb_top {
    width        : 881px;
    height       : 560px;
    box-shadow   : 0px 0px 5px 0px rgba(1, 54, 68, 0.3);
    padding      : 17px;
    margin-bottom: 30px;
}

.tb_top_img {
    width        : 100%;
    height       : 100%;
    /* background: url(../img/14.png) center no-repeat; */
}

.tb_bottom {
    width     : 1200px;
    height    : 156px;
    box-shadow: 0px 0px 5px 0px rgba(1, 54, 68, 0.3);
    padding   : 12px 129px;
    overflow  : hidden;
    position  : relative;
}

/* .tb_bottom>ul {
    display        : flex;
    justify-content: space-between;
    overflow       : hidden;
} */

.tb_bottom>ul li {
    /* width : 212px !important; */
    height: 132px;
}

.swiper-slide {
    /* width     : 100%;
    height    : 100%; */
    background: center/cover no-repeat;
}

.test {
    opacity: 0.5;
}

.swiper-slide-thumb-active {
    opacity: 1;
}

.swiper-button-next,
.swiper-button-prev {
    height         : auto;
    justify-content: left;
    font-size      : 50px;
    font-weight    : 200;
    color          : #013644;
    transform      : translateY(-20%);
}

.tb_bottom button {
    background-color: transparent !important;
}

.swiper-button-prev {
    left     : 40px;
    transform: translateY(-20%) rotate(180deg);
}

.swiper-button-next {
    right: 40px;
}

.swiper-button-prev::after,
.swiper-button-next::after {
    content: '';
}

.swiper-button-prev:focus,
.swiper-button-next:focus {
    outline: none;
}